ABB REM 543 Technical Reference Manual page 12

ABB Network Partner
Page 12
REM 543 Protection,
Monitoring and Control
The protection functions available for the REM 543 machine terminal:
Function Description
CUB3Low Phase discontinuity protection
DEF2Low Directional earth-fault protection, low-set stage
DEF2High Directional earth-fault protection, high-set stage
DEF2Inst Directional earth-fault protection, instantaneous stage
Diff6G Stabilized three-phase differential protection for generators
Freq1St1 Underfrequency or overfrequency protection, stage 1
Freq1St2 Underfrequency or overfrequency protection, stage 2
Freq1St3 Underfrequency or overfrequency protection, stage 3
Freq1St4 Underfrequency or overfrequency protection, stage 4
Freq1St5 Underfrequency or overfrequency protection, stage 5
Inrush3 Three-phase transformer inrush and motor start-up current detector
MotStart Three-phase start-up supervision for motors
NEF1Low Non-directional earth-fault protection, low-set stage
NEF1High Non-directional earth-fault protection, high-set stage
NEF1Inst Non-directional earth-fault protection, instantaneous stage
NOC3Low Three-phase non-directional overcurrent protection, low-set stage
NOC3High Three-phase non-directional overcurrent protection, high-set stage
NOC3Inst Three-phase non-directional overcurrent protection, instantaneous stage
NPS3Low Negative-phase-sequence (NPS) protection, low-set stage
NPS3High Negative-phase-sequence (NPS) protection, high-set stage
NUC3St1 Three-phase non-directional undercurrent protection, stage 1
NUC3St2 Three-phase non-directional undercurrent protection, stage 2
OPOW6St1 Three-phase overpower protection, stage 1
OPOW6St2 Three-phase overpower protection, stage 2
OPOW6St3 Three-phase overpower protection, stage 3
OV3Low Three-phase overvoltage protection, low-set stage
OV3High Three-phase overvoltage protection, high-set stage
REF1A High-impedance based restricted earth-fault protection
ROV1Low Residual overvoltage protection, low-set stage
ROV1High Residual overvoltage protection, high-set stage
ROV1Inst Residual overvoltage protection, instantaneous stage
TOL3Dev Three-phase thermal overload protection for devices
UE6Low Three-phase underexcitation protection, low-set stage
UE6High Three-phase underexcitation protection, high-set stage
UPOW6St1 Three-phase underpower or reverse-power protection, stage 1
UPOW6St2 Three-phase underpower or reverse-power protection, stage 2
UPOW6St3 Three-phase underpower or reverse-power protection, stage 3
Technical Reference Manual
Part 1, General